adding valve to backhoe

[bandaidmd]

Hey Guys heres my plan to add a valve to my kubota BH65 detachable backhoe to power a hyd cyl to operate a thumb. I have remotes on the B2620 tractor for t~n~t and could use that but the install would be cleaner if I added a dedicated valve that stays on the backhoe so i only have the two original hoses to hook up.
The set up now is the power beyond to the internal 3ph cyl is split with a quick connect and when you use the backhoe you unhook the line and loop the backhoe in the circuit ( one "pressure" hose in one "return" out) and couple them together for normal 3ph use.

Heres the valve i would like to use that has PB capability but it shows needing a return to tank line, My thought was i could just put it first in line run the pressure hose to it than the pb port would supply the backhoe valve before returning to tank (or in my case the 3ph cyl). Am i reading it wrong and the 3rd "return port " can be plugged ? The back hoe valve is one in one out.

1 SPOOL 8 GPM PRINCE MB11B5C1 DA VALVE

 

[TractorTech]

It would be cleaner and easier to add an electrohydraulic valve on the bucket circuit attached to the dipper. Split the bucket circuit between the bucket cylinder and thumb cylinder. Electric switch would be either attached to the backhoe rh stick or a foot switch could be utilized. A lot less plumbing and easier, cleaner mounting. Take a look at item #9-7987 by Hydroforce on SurpluSupply website. Can't do an attachment of it on my tablet right now.